Printing apparatus for the production of diapositives



SERGE DE PROCAUDINE-GORSKY. v PRINTING APPARATUS FOR THE PRODUCTION OF DIAPOSITIVES.

APPLICATION FILED JULY 17.1919.

Patented Apr. 25, 1922.

3 SHEETS-SHEET L //7 VG/l/Ul". Jerqe 0e Prawd/he 60/5 k Afforney.

SERGE DE PROCAU D l N E-GORSKY. PRINTING APPARATUS FOR THE PRODUCTION OF DIAPOSH'IVES.

APPLICATION HLED JULY 17.1919.

Patented Apr. 25, 1922.

3 SHEETS-SHEET 2- In van for.

Serge de Prawn/he 50/15/94 mat/L SERGEDE PROCAUDINE-GORSKY. PRINTING APPARATUS FOR THE PRODUGTION 0F DIAPOSlTIVES.

APPLICATION HLED JULY 11.1919.

Patented Apr. 25, 1922.

; SHEETS-SHEET 3- lnven fen v Serge dc ProaaMine-Gamky.

' UNITED STATES PATENT OFFICE.

SERGE DErRocAUnmE-eonsKY, or GRANSTAD, noNNERUnnEni-t DRAMMEN,

' 1 NORWAY.

PRINTI N 'G-"APPARATUSFOR THEPRODUCTION 0F DIAPOSITIVES.

Application filed July 17,

-do hereby declare the following to be at full, clear, and exact description of the invention,

suchas will enable others skilled in theart to whicli it appertains to make use the same, reference being had to the accompanying drawings, and to letters or figures of reference marked thereon, which form a partor this specification.

' This inventionhas for its object a printin apparatus for the production of diapositives.

V In making coloured diapositives' by re peatcdly applying toa diapositive lainina various emulsions for the printsof the hegafives, which are to betalten one after anothera process which. is the object of a concurrently-filed, companion application Serial No; ,S-llLGSi, itisiiecessary to remove the diapositive plate after each print has been made. in order to give it the necessary treatment. In order to'obtain good results --viz faultless coloured diapositivesatter this treatment, care must be taken that each succeeding print coincides exactly with the preceding one. I

By means of the apparatus which is the object of?" the present invention exact registering of the. prints with the original is obtained; in other words, this apparatus rendersit possible to take any de-v sired number of exactly identical diaposi t-iv'e prints. To attain this it. is only necessary that the glass-plates intended .for the diapositive pictures have ground edges. In grinding the plates it does not matterinuch, if the edges of the plate arenot exactlyin angle, but it is of importance only that. the edges have no such unevenness as would render them liable to break bythe repeated inserting and taking out of the plate and whereby a removal or shifting of the positionoit the plate in the apparatus might be caused.

t The apparatus is arranged in such a way that the correct adjustmentoi the diapositire plates with ground edges is done automatically; wherefore no special attention or experience is required from the, attendai'its.

Specification of Letters Patent. Pate t d A 1922- 9 2- snar 5.8

After having made the desired number of diapos itives vfrom a certain negative (a negative print taken through a screen of a certaincolour) and prepared the latter for e nex Pr n in the. p t e of su positive is placed in register with a second negative (three of suclr being in all,) the two arelsuperposed and the p finting of the next die-positive is made by simply placing them in the same. frame and then exposing to-light. The same adjustment is made before thethird negative is printed, so that only three adjustmentsof the negative and diapositive plates are necessary for making any desired number of coloured diaposit-ives after the three-colour system.

*An apparatus constructed according with theinvent-ion is illustrated in the annexed aw ng;

; Iii l is a plfllLVleW of a board or table, can beplacedin any desired angle, and to which a device is fitted for the printing of diapositi'ves in accordance with the presentinvention Fig. 2 is a sectional view through the vertical center-line of the board. Figs. 3and 4 are sectional views on the lines 3-3 and 44, respectively, of, Fig. 1. Fig. 5 is, a side elevation of the apparatus, showing same, in twodiflercnt working positions "the board. *hen in the position indicated in full lines the putting in and removal of the diapositiv'es are effected, where as the adjustmentof the negatives to l e copied in respect. to the diapositive is made inthe position shown in dotted lines. Referring to Fig. 5 of the drawing, there is shown a table E, supported upon a stand F, and to which a board 0 of wood or other suitable material is connected 'by hinges 21 for upward and downward swinging movement. The-board may be held in adjusted position by means of clamping screws 37. Whiehengage in slots 36 formed in a pair of rods pivotedat one end to the side edges of the board.

The Saidboard is provided with an openin}: G (Figs. 2, 3 and 4) and to the inner faceo't the board behind said opening there is lixe da metal. plate 60, while a frame 1 or handle 5. Sector 6 is formed with a rearwardlywlisposed spiral cam 7 for coaction with a nose 8 on a supporting arm 9, which is designed to swing toward and from the frame 1 and carries with it a plate 16 to be moved into and out of said frame. A spring 11., which encircles pivot 3, tends to force said sector against a nut 12 carried by said pivot, whereby the position and distance of the crank in relation to hoard O may be regulated.

To enable the movements of the supporting arm 9, its lower end is forked and mounted on a pair of spaced pivots 10 which are arranged upon the end of the frame arm 2 with their axes in alinement and at right angles to the axis of pivot 3. When crank t is swung downward from its full-line to its dotted-line position. 1), arm 9 will be permitted to swing outwardlyaway from frame 1, either gravitally or by being shifted manually; but when the crank is moved in. an upward direction, i. e., from clottedline to full-line position, cam 7 will act upon nose 8 to forcibly swing said arm toward said frame, as will be understood. 1

Stops 13 and are provided to limit the movements of the crank in opposite directions, the upper stop 13 having associated with it a spring-actuated pin or bolt 14 which serves to retain the crank in its upper position. The lower stop 15 preferably has a movable mounting to permit it to be soifted from one position to another and thereby "vary the range of movement of the crank; said stop being here shown as carried by a swinging arm 15" mounted on a pivot 20. so that it may be moved from its full line position to its dotted-line position 15'. The crank is offset or bent adjacent its pivot end, as indicated in Fig. 5, in order that when the stop occupies the last-mentioned position, this bent or offset portion will clear said stop and enable the crank to be moved beyond its dotted-line position sufliciently far to effect a complete disengagement of the parts 7 and 8. Arm 9 may then be swung away from frame 1, for instance into the dottedline position represented in 5; and if the board occupies the tilted position shown in full lines in that figure, the movement of said arm will ta place automatically, due to gravity.

The plate 16 above referred to is provided upon its inner face with a cushion17 of felt or similar nrerial which is directly attached to n dist: The latter tits adjustably within (.liigs. 3 and 1) formed in the said inner face of plate 16 and has connected to it a screw 19 for effecting its adjustment. The diapositive l) is adapted to be positioned against this cushion 17 prior to its introduction into printing position in frame 1, and means are provided for centering the diapositive and for retaining it in place, all as hereinafter explained. Frame 1 is arranged obliquely or diagonally on board Oi. e., at an angle of about to the vertical center line of the board, which latter has a correspondingly arranged groove 22 (Fig. 1) formed in its outer face and adapted to be closed at its ends by covers 23 and 241, said groove extending beneath the frame and having a width equal to that of the negatives N from which the diapositive prints are to be made. The negatives are placed under frame 1 and then clamped between the latter and a thick glass plate 25 which is supported on rubber cushions 27 fixed in a swinging frame 26 which in turn, is mounted on a pivot 28 (Fig suitably disposed within opening (l and connected to frame 1, rubber strips or cushions being also applied to the rim of the frame on the inside thereof to avoid injury to the negatives. Frame 26 is formed with an extension carrying a bolt or screw 29 which projects outwardly through an opening in the fixed frame 1 and carries a nut 30, such arrangement enabling a relative adjustment between the two frames, as will be understood, which permits the glass plate 25 to be pressed against the negative plate. and the latter. in turn. against the fixed frame.

An electric lamp 33 provides the light necessary for printing, and is disposed within a frusto-couical reflector 31, to which the socket of the lamp is detachably connected by means of a bayonet-joint 32, said reflector being fastened at its larger end to the metal plate 60. An opaque glass plate 341 is interposed between the lamp and the negative N.

The diapositive l), which is usually in the form of a glass plate coated with a suitable sensitizing emulsion, is brought into printing position against the negative N in the following manner: The crank 41 is first moved into the position indicated in dotted lines in Fig. 1, in order to unlock the supporting arm 9. which can then be swung away from frame 1, carrying the plate 16 and felt cushion 17 with it. Plate 16 is designed to coact with three knives or equivalent devices 10, ll. and 4-2 which enga e the edges of the diapositive, after the latter has been placed against the cushion l7, and thus accurately support it in position during the subsequent inward movement of the plate and crank. To pre ent displacement of the diapositive relative to said knives, a pair of small twoarmed levers 1?) and 4-1 is mounted on pins and arranged in slots or lrei'fs formed in the two upper side portions of frame 1 opposite the knives. These evers are acted on by springs #15 and 46 (Figs. 3 and 1) which tend to press the inner ends of the levers toward the center of the frame so that they will be caused to bear against the up suspended from a bolt or rod 50; a depend ingextension or arm beingformed on frame 49 which is interposed between arms2 and 9 (Figs. 1 and-2) and which is loosely connected with the first-mentioned arm 2 through the agency of a screw 52 and intermediate spring 51, the latter tendingto' force the movable frame 49 away from the fixed frame 1.

The frame 49 is pressed inwardly toward frame 1 against the tension of spring 51, when the crank 4 is swung upwardly into locking position, for which purpose'there is provided on the supporting arm 9 an adj ustable bolt'53. This bolt is designed to engagethe extension or armon frame 49 and,

as the inward movementofarm 9 continues, due to the coaction between. cam 7 and nose 8, to gradually effect-the desired inward movement of said frame, which latter is thereby moved away fromstops; 47 and 4:8. The spring-s45 and 46 are thereupon; enabled to rockthelevers inthemanner. above described, with the result thatthe edges of the diapositive are pressed against the,

knives. When the supporting arm 9 is subsequently unlocked, consequent upon the movement of granite into its dotted-line position, and then swung away from the board, frame 49' will be, forced outward. by spring 51 and, hence, will again engage the stop.

screws on the clamping levers; This operation will be facilitated if the board 0 is swung intothe position represented in full lines in Fig. 5, as insuch position the outward movement of the supporting arm will take place automatically under the influence of gravity, assisted to some extent, perhaps,

by the expansive action of spring 51.

On the other hand, if it is necessary to adjust the negative, the board should be adjusted to the position shown in dotted lines in Fig. 5; and in placing the negative opposite the diapositive. a non-actinic screen 56 (Figs. 1, 2 and 41-) should be utilized. This screen is preferably mounted in a sector-shaped member 39, which is pivoted at to the board and is provided with an operating arm 58 designed to be engagethwhen in one position, and held against displacement by means of a spring catch Said member is arranged against the inner face of plate 60 and is adapted to travel in a recessed portion thereof indicated at 38 (Figs. 2, S and i) and when in the position just mentioned, which is indicated in dotted lines in Fig; 1', the screen will be interposed between the lamp and the glass plate 25, so that it will-protect the negative and the diapositive against the action of the light rays.

I claim:

1. An apparatus for printing succession of exactly-registering diapositive images on 'aizingle plate, comprising'a frame'having an opening therein; means for supporting a negative in said opening; and means, separate from the first-named-supportingmeans, for supporting in said opening the diapositive plate to be printed. upon the second.-

amed supporting means embodying a set of supporting projections on: the frame having edgeswhich abut transversely against the edges of the diapositive plate.

2 An apparatus for printinga succession of exactly-registering diapositive images on a single plate, comprising a frame having an opening therein; means for supporting a negative insaid opening; a set of three sup porting knives having their edges arranged to transversely engage the edgeso'f the diapositive plate to be printed upon; and means for pressing said plate edgewise against. said knives. s

3. An apparatus for printing a succession of exactly-registering,diapositive images on a single plate, comprising a frame having an opening therein; means for supporting a negative in said opening; supporting projections for engagement with the edges of? the diapositive plate to be printed upon;

and means for imposing a yielding pressure edgewise on said plate in a direction tohold it against said projections.

4. An apparatus-for printing a" succes-- sion of.exactly-registering diapositive images on asingle plate, coinprisinga frame having an opening therein; means for supporting a negative in said opening; supporting meansrfor engagement with theedgesof the diapositive plate' to be. printed upon; and

means for moving said plate alongsaidsupporting means into Silld; opening.

5. An apparatus-forprinting. a succes-.

sionof. exactly-registering diapositive images ona single plate, comprising a frame having an opening therein; means for supporting a negative in said opening; supporting projections for engagement with the edges of the diapositive plate to be printed upon; a supporting member for moving the dia positive plate along said projections into said opening;

a pivotally-mounted carrier to which said supporting member is attached; a cam element for operating said carrier; and a crank for actuating said cam.

6 An apparatus for printing a succession of exactly-registering diapositive images on a single plate, comprising aframe having an openingtherein; means for supporting a negative in said opening; a supporting member for the diapositive plate to be o named frame and against which the ne the rharacter described, compris 7. An apparatus tor printing a succession Olll exactly-registering diapositive images on a single plate comprising a tl'rame lniving an opening therein; means "for supporting a negative in said opening; supporting projections for engagemei'it with the ed the diapositive plate to be printed upon; and a set of spring-actuated levers for imposing a yielding pressure edgcwise nst said plate in a direction to hold it a ainst said projections.

8. An apparatus "for printing a succession oi exactly-registering images on a single plate, comprising a frame having an open ing therein; a frame mounted in said opening for supporting the negative to he minted from a glass plate arranged in the sec is disposed; a carrier "for the diaposit-ire to be printed upon movable into prim V tion in said opening; means for holdin said carrier in such position; and cushion in said second-named frame interposed hetween the back thereof and the ulate :tor pressing the latter and the negative against the first-named frame.

9. A photographic printing apparatus 1 in combination a pivotallvmounted board lizavi' an opening therein; a'itrame attached. hoard and. provided with a plurality oi; edges; means for resiliently pressing a said edges the edges ot the positive he printed upon; a glass plate associated with said frame and against which the nega tive plate to be printed from is pressed; a source of light; and a non-actinielight screen for screening said light source and facilitating the mutual adjustment Oil the migative and positive plates.

10. A photographic printing apparatus oi. the character described comprising in combination a frame provided with a pluralii; oi knife edges; means for resiliently pressing against said edges the edges oi? the positive plate to be printed upon; a glass plate associated vwith said frame and against which the negative plate to be printed from is pressed; a carrier for the positive plate provided with a recess in its inner lace; a disk swiveled in said recess; a yielding cushion attached to said disk for maintaining close contact between the positive and negative plates; and a supporting arm for said. carrier mounted for pivotal movement in a plane perpendicular to the plane of said :trame.

11, A photographic printing apparatus of the character described comprising in comliiination a frame provided with a plurality of knife edges; spring-pressed levers or re silientl'y pressing against said edges the edges of the positive plate to be printed upon; a glass plate associated with said frame and against which the negative plate to be printed from is pressed; and means for maintaining the positive and negative plates in close contact.

12. A photographic printing apparatus of: the character described, comprising in. comhination a frame provided with an opening; a frame for supporting the negative to he printed itro 1; pivotally mounted within said opening for movement toward and away from the first frame; a glass plate arranged in the second-named frame and against which the negative is disposed; and a screw device for adjusting the position 01'' said second-named frame with respect to said first frame.

in testimony that I claim the foregoing my invention, I have signed my name in prese cc of: two subscribing witnesses.

SERGE ale PRUYLUD? iE-GORSKY.

Witnesses ALGA Miinmni, Moeors Boson. 

